All categories

3 years ago

Given the zeros 7, -1, 9 what are the factors

Mathematics

2 answers:

vlada-n [284]3 years ago

5 0

The factors are (x-7), (x+1), and (x-9)

MrRissso [65]3 years ago

4 0

Poop poop poop poop poop

You might be interested in

Oy is collecting rocks. She has 3 jars and 4 buckets. There are 2 rocks in each jar and 3 rocks in each bucket. How many rocks d

Molodets [167]

j = # of jars

b = # of buckets

y = total # of rocks

2j + 3b = y (2 rocks per jar, 3 rocks per bucket)

Because Joy has 3 jars you can plug 3 in for "j", and because she has 4 buckets you can plug in 4 for "b"

2(3) + 3(4) = y

6 + 12 = y

18 = y

7 0

3 years ago

Read 2 more answers

My brother is 5 years older than I am. My sister is 3 years younger than I am.

grin007 [14]

Answer:

8 years older then your younger sister

7 0

3 years ago

Read 2 more answers

5. The superintendent of the local school district claims that the children in her district are brighter, on average, than the g

anygoal [31]

Answer:

We conclude that children in district are brighter, on average, than the general population.

Step-by-step explanation:

We are given the following data set:

105, 109, 115, 112, 124, 115, 103, 110, 125, 99

Formula:

$\text{Standard Deviation} = \sqrt{\displaystyle\frac{\sum (x_i -\bar{x})^2}{n-1}}$

where $x_i$ are data points, $\bar{x}$ is the mean and n is the number of observations.

$Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}$

$Mean =\displaystyle\frac{1117}{10} = 111.7$

Sum of squares of differences = 642.1

$S.D = \sqrt{\frac{642.1}{49}} = 8.44$

We are given the following in the question:

Population mean, μ = 106

Sample mean, $\bar{x}$ = 111.7

Sample size, n = 10

Alpha, α = 0.05

Sample standard deviation, s = 8.44

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 106\\H_A: \mu > 106$

We use one-tailed(right) t test to perform this hypothesis.

Formula:

$t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{s}{\sqrt{n}} }$

Putting all the values, we have

$t_{stat} = \displaystyle\frac{111.7 - 106}{\frac{8.44}{\sqrt{10}} } = 2.135$

Now,

$t_{critical} \text{ at 0.05 level of significance, 9 degree of freedom } = 1.833$

Since,

$t_{stat} > t_{critical}$

We fail to accept the null hypothesis and reject it. We accept the alternate hypothesis.

We conclude that children in district are brighter, on average, than the general population.

4 0

3 years ago

Non examples of graphs

Kipish [7]

A Non-example is like there we not enough to grapha

5 0

3 years ago

Read 2 more answers

Solve the following equation for x.

Drupady [299]

Answer:

$6 {x}^{2} + 54x + 120 = 0 \\ factors : 4 \: and \: 5 \\ = (6x + 24)(x + 5) \\ = > x = -4 \: and \: - 5$

5 0

3 years ago